Bus



FIG. 1 is a perspective view of the bus;

FIG. 2 is a front view of the bus;

FIG. 3 is a top plan view of the bus on a reduced scale;

FIG. 4 is a right side view of the bus on a reduced scale;

FIG. 5 is a left side view of the bus on a reduced scale; and,

FIG. 6 is a rear view of the bus.

The ornamental design for a bus, as shown and described.